<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }
    div {
      width: 100px;
      height: 100px;
      background-color: purple;
    }
  </style>
</head>
<body>
  <div></div>
</body>
</html>
